Leviticus 6:20-22

20“This is the offering of Aaron and his sons, which they shall offer to the Lord, beginning on the day when he is anointed: one-tenth of an ephah of fine flour as a daily grain offering, half of it in the morning and half of it at night.

21It shall be made in a pan with oil. When it is mixed, you shall bring it in. The baked pieces of the grain offering you shall offer for a sweet aroma to the Lord.

22The priest from among his sons, who is anointed in his place, shall offer it. It is a statute forever to the Lord. It shall be wholly burned.